.activity-menu_div{
    position: relative;
    left: 50%;
    top: 20%;
    transform: translate(-50%,0);
    width: 600px;
    height: 100px;
}
/*活动进行中*/
.activities,.active_over{
    width: 150px;
    height: 40px;
    text-align: center;
    line-height: 40px;
    font-size: 20px;
    border-radius: 20px;
    display: inline-block;
    position: absolute;
    top: 50%;
    left: 13%;
    transform: translate(0,-50%);
    color: rgba(102, 102, 102, 0.38);
    box-shadow: 1px 1px 3px rgba(102, 102, 102, 0.4);
}
/*活动结束*/
.active_over{
    left: 60%;
}
.active_over:hover,.activities:hover{
    width: 200px;
    height: 50px;
    line-height: 50px;
    box-shadow: 1px 1px 5px rgba(102, 102, 102, 0.82);
    transition: 1s;
    font-size: 25px;
    color: #666666;
    border-radius: 50px;
}